45) The length of a certain conductor of resistance 100 Ohms is doubled and its cross-sectional area is halved. Its new resistance is

100 Ohms

200 Ohms

50 Ohms

400 Ohms

Answer is:

400 Ohms

ISRO Technician-B MRAC Question Paper - 2016 (Set -1) with Answer Key

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46) The largest number of 100 W electric light bulbs which can be operated from 240 V supply fitted with a 13 A fuse is

Answer is:

31

47) In a series-wound generator running at constant speed, as the load current increases, the terminal voltage

increases

decreases

stays the same

None of these

Answer is:

increases

48) The lowest thermal diffusivity is of

Iron

Lead

Aluminium

Rubber

Answer is:

Rubber

49) Barometer is used for measuring

Atmospheric pressure

Dew point temperature

Latent heat of vaporization

Relative humidity

Answer is:

Atmospheric pressure

Explanation:

Atmospheric pressure: The atmospheric air exerts a normal pressure upon all surfaces with which it is in contact and it is known as atmospheric pressure. Atmospheric pressure is also known as barometric pressure. Barometer is used to measure atmospheric pressure.

ISRO Technician-B MRAC Question Paper - 2016 (Set -1) with Answer Key

For more MCQ's Click Here

45) The length of a certain conductor of resistance 100 Ohms is doubled and its cross-sectional area is halved. Its new resistance is

400 Ohms

ISRO Technician-B MRAC Question Paper - 2016 (Set -1) with Answer Key

Related ISRO Technician-B MRAC Question Paper - 2016 (Set -1) with Answer Key

46) The largest number of 100 W electric light bulbs which can be operated from 240 V supply fitted with a 13 A fuse is

31

47) In a series-wound generator running at constant speed, as the load current increases, the terminal voltage

increases

48) The lowest thermal diffusivity is of

Rubber

49) Barometer is used for measuring

Atmospheric pressure

ISRO Technician-B MRAC Question Paper - 2016 (Set -1) with Answer Key